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i2c: fix return value doc for _read_bytes_data

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Closes #218

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
This commit is contained in:
Brendan Le Foll
2015-06-09 08:25:36 +01:00
parent ae9130ee8f
commit 1c4be07aac
2 changed files with 2 additions and 2 deletions
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2
api/mraa/i2c.h
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@@ -122,7 +122,7 @@ uint16_t mraa_i2c_read_word_data(mraa_i2c_context dev, const uint8_t command);
* @param command The register * @param command The register
* @param data pointer to the byte array to read data in to * @param data pointer to the byte array to read data in to
* @param length max number of bytes to read * @param length max number of bytes to read
* @return The length in bytes passed to the function or 0 * @return The length in bytes passed to the function or -1
*/ */
int mraa_i2c_read_bytes_data(mraa_i2c_context dev, uint8_t command, uint8_t* data, int length); int mraa_i2c_read_bytes_data(mraa_i2c_context dev, uint8_t command, uint8_t* data, int length);

2
api/mraa/i2c.hpp
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@@ -154,7 +154,7 @@ class I2c
* @param reg Register to read from * @param reg Register to read from
* @param data pointer to the byte array to read data in to * @param data pointer to the byte array to read data in to
* @param length max number of bytes to read * @param length max number of bytes to read
* @return length passed to the function or 0 * @return length passed to the function or -1
*/ */
int int
readBytesReg(uint8_t reg, uint8_t* data, int length) readBytesReg(uint8_t reg, uint8_t* data, int length)